IP Library Granted Patent US 10,344,922
Granted Patent B2
US 10,344,922 · App. 15/812,729 · Granted Jul 9, 2019

Luminaires using waveguide bodies and optical elements

Inventors: Bernd P. Keller (Santa Barbara, CA); Eric J. Tarsa (Goleta, CA); Zongjie Yuan (Libertyville, IL); Kurt S. Wilcox (Libertyville, IL)
Assignee: Ideal Industries Lighting LLC
F21K9/61F21S2/00F21V7/0008G02B6/0021G02B6/0068F21K9/20F21Y2113/13F21Y2115/10G02B6/003G02B6/0036G02B6/0073G02B6/0078
View Patent ↗
Loading inventors, assignments & file history…
Monitor This Case
Get email alerts when status or documents change.
Order Certified Copies
Most orders are placed with the USPTO same day — all within 24 business hours.
Order via The Patent Place →
Pre-filled with this patent's details
Quick Facts
Patent No.
US 10,344,922
App. No.
15/812,729
Granted
Jul 9, 2019
Kind
B2
Abstract

According to one aspect, a waveguide comprises a waveguide body having a coupling cavity defined by a coupling feature disposed within the waveguide body. A plug member comprises a first portion disposed in the coupling cavity and an outer surface substantially conforming to the coupling feature and a second portion extending from the first portion into the coupling cavity. The second portion includes a reflective surface adapted to direct light in the coupling cavity into the waveguide body.

Claims (10)

1. A luminaire, comprising:

a waveguide body comprising an interior coupling cavity extending into an interior portion of the waveguide body remote from an edge thereof; and

wherein the interior coupling cavity comprises a first scalloped surface;

wherein the first scalloped surface is formed from a plurality of inwardly directed curved surfaces; and

wherein the interior coupling cavity comprises a second scalloped surface disposed adjacent the first scalloped surface, wherein the second scalloped surface is formed from a plurality of inwardly directed curved surfaces;

an LED element extending into the interior coupling cavity;

wherein the LED element directs light through the first and second scalloped surfaces.

2. The luminaire of claim 1 , wherein the interior coupling cavity comprises a second scalloped surface disposed about the first at least one scalloped surface.

3. The luminaire of claim 1 , wherein the LED element comprises first and second sets of LEDs, each of the first set of LEDs is of a first color, each of the second set of LEDs is of a second color, and the LEDs of the second color are disposed between LEDs of the first color.

4. The luminaire of claim 3 , further comprising a lens disposed over the first and second sets of LEDs.

Assignments (4)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded May 22, 2026
From: LUMEN ACQUISITION HOLDINGS, LLC
To: LED-IP MANAGEMENT, LLC
Reel/Frame 075624/0358 →
SECURITY INTEREST Recorded Sep 13, 2023
From: IDEAL INDUSTRIES LIGHTING LLC
To: FGI WORLDWIDE LLC
Reel/Frame 064897/0413 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded May 20, 2019
From: CREE, INC.
To: IDEAL INDUSTRIES LIGHTING LLC
Reel/Frame 049224/0580 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Nov 15, 2017
From: KELLER, BERND P.; TARSA, ERIC J.; YUAN, ZONGJIE; WILCOX, KURT S.
To: CREE, INC.
Reel/Frame 044138/0032 →
Continuity (8)
Continuation 14101147 · Dec 9, 2013
Continuation In Part 13842521 · Mar 15, 2013
Continuation In Part 13839949 · Mar 15, 2013
Continuation In Part 13841074 · Mar 15, 2013
Continuation In Part 13840563 · Mar 15, 2013
Continuation In Part 13938877 · Jul 10, 2013
Provisional Application 61758660 · Jan 30, 2013
Related Publication 20180066808A1 · Mar 8, 2018